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DTrace support, with a small initial set of probes

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by Robert Lor
This commit is contained in:
Peter Eisentraut
2006-07-24 16:32:45 +00:00
parent 9dc34b5feb
commit e9b4969062
12 changed files with 230 additions and 11 deletions
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7
src/backend/storage/lmgr/lock.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lock.c,v 1.168 2006/07/23 23:08:46 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lock.c,v 1.169 2006/07/24 16:32:45 petere Exp $
*
* NOTES
* A lock table is a shared memory hash table. When
@@ -796,8 +796,13 @@ LockAcquire(const LOCKTAG *locktag,
/*
* Sleep till someone wakes me up.
*/
PG_TRACE2(lock__startwait, locktag->locktag_field2, lockmode);
WaitOnLock(locallock, owner);
PG_TRACE2(lock__endwait, locktag->locktag_field2, lockmode);
/*
* NOTE: do not do any material change of state between here and
* return. All required changes in locktable state must have been